Additional doc changes for "testing classads" as per review: HTCONDOR-604
Additional doc changes for "testing classads" as per review:
HTCONDOR-604

htcondor/htcondor,htcondor/htcondor,htcondor/htcondor,htcondor/htcondor,htcondor/htcondor,htcondor/htcondor,htcondor/htcondor,htcondor/htcondor